Solidity Blockchain Engineer

Fornour customer we are seeking a Blockchain Engineer for a long term project - We need a Lead Engineer with Solidity skills for an initial 3 month contact with a view to extend  - Writing smart contracts in Solidity.  - Ability to design modular, reusable contract architectures.  - Track record of designing contracts following industry best practices (SWC Registry, OWASP guidelines for blockchain).  -Ability to design interfaces/APIs that work with off-chain systems (REST, gRPC, SAP, etc.)  - Implementation of ERC standards (ERC-20, ERC-721, ERC-1155, ERC-4626).Experience with gas optimisation, inheritance patterns, libraries, and modifiers.Ability to write upgradeable contracts (e.g. using OpenZeppelin’s proxy patterns).Familiar with common attack vectors (reentrancy, overflow/underflow, frontrunning, flash loan exploits).TDD/BDD with frameworks (Hardhat, Foundry, Truffle).  Hands-on experience with auditing tools (Slither, MythX, Echidna). - Ability to design modular, reusable contract architectures. - Track record of designing contracts following industry best practices (SWC Registry, OWASP guidelines for blockchain).  Ability to design interfaces/APIs that work with off-chain systems (REST, gRPC, SAP, etc.)  Implementation of ERC standards (ERC-20, ERC-721, ERC-1155, ERC-4626). Skills that separate great candidates from OK ones: